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Related titles should be described in Simple linear regression, while unrelated titles should be moved to Simple linear regression (disambiguation). ( May 2019 ) Line fitting is the process of constructing a straight line that has the best fit to a series of data points.
A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.
In mathematics, the term linear function refers to two distinct but related notions: [1]. In calculus and related areas, a linear function is a function whose graph is a straight line, that is, a polynomial function of degree zero or one. [2]
The Theil–Sen estimator is a simple robust estimation technique that chooses the slope of the fit line to be the median of the slopes of the lines through pairs of sample points. It has similar statistical efficiency properties to simple linear regression but is much less sensitive to outliers. [23]
An example of a linear time series model is an autoregressive moving average model.Here the model for values {} in a time series can be written in the form = + + = + =. where again the quantities are random variables representing innovations which are new random effects that appear at a certain time but also affect values of at later times.
A pictorial representation of a simple linear program with two variables and six inequalities. The set of feasible solutions is depicted in yellow and forms a polygon, a 2-dimensional polytope. The optimum of the linear cost function is where the red line intersects the polygon.
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The line perfect graphs are exactly the graphs that do not contain a simple cycle of odd length greater than three. [18] Equivalently, a graph is line perfect if and only if each of its biconnected components is either bipartite or of the form K 4 (the tetrahedron) or K 1,1,n (a book of one or more triangles all sharing a common edge). [19]